XamlWriter.Save breaking Image.Source

When I have both XAML and Images in a Package, modify the image, and then
re-save the XAML file out using XamlWriter.Save, the Image Source attribute
changes:

<Image Source="011.jpg"/>

to

<Image
Source="pack://file:,,,C:,Users,ctaylor,AppData,Local,Temp,tmp2297.tmp/011.JPG" />

Having this path saved back out to the XAML causes the Image to not be read
properly next time it is read in.

How can I prevent this from happening or fix this???

Thanks